What should I run my new CDT CL-61a's crossover at? I.e. flat, -3db, or +3db? They will be connected to an alpine deck and a kicker 800.4 with 1 12" Kicker CompVR.
Steve, hard to say without knowing about your car and how they were mounted. The easiest thing is to set them at - 3 db, then listen to them. Move up to the other levels and see which one sounds the best in your car.